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sweet [91]
3 years ago
12

a washer and dryer costs $951 combined. The washer costs $51 more than the dryer. what is the cost of the dryer?​

Mathematics
2 answers:
Over [174]3 years ago
8 0

Answer:

$450

Step-by-step explanation:

We know that the washer costs $51 more dollars than the dryer.

The washer costs x+51

The dryer costs x

So to simplify this we can do this equation:

2x+51=951

Substitute and simply the equation, and you should get this:

2x=900

x=450

Hope this helps! :)

Kaylis [27]3 years ago
7 0

$900

Step-by-step explanation:

if the washer and dryer combined equal 951 and the washer itself equals 51 then all you need to do is subtract to get the cost of the dryer alone.

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What is the minimum and maximum of f(x)=-10x^3+6x-2
const2013 [10]

Answer:

Minimum: (\frac{\sqrt{5} }{5},-2+\frac{4\sqrt{5}  }{5})

Maximum: (-\frac{\sqrt{5} }{5} ,-2-\frac{4\sqrt{5} }{5} )

Step-by-step explanation:

5 0
3 years ago
One pipe can fill a tank in 20 minutes. A second pipe can fill the tank in 30 minutes. If the tank is empty, how long would be r
ioda
(It might also have helped immensely if you had been listening
when this was being explained in class.)

The first pipe fills 1/20 of the tank each minute.
The second pipe fills 1/30 of the tank each minute.

Operating together, the two pipes fill ( 1/20 + 1/30 ) of the tank each minute.

In order to add these fractions (or any fractions), you need a common denominator.
For these particular ones, ' 60 ' is a good choice.

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The rate of work is 1/12 tankful per minute .

The most sensible choice for the time is 12 minutes.

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8 0
3 years ago
Are the two lines parallel, perpendicular, coinciding lines, or neither?
Elena L [17]

Answer:

D

Step-by-step explanation:

crosses at a 90 degree angle

6 0
2 years ago
Does anyone know the answer for 42 ?
Trava [24]
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4 0
3 years ago
(4+8+12+16+...+204):(2+4+6+...+102=
Vikki [24]

Both numerator and denominator are a sum of 51 terms, counted skipping 4s (numerator) and 2s (numerator).

So, you have

\dfrac{\displaystyle\sum_{i=1}^{51} 4i}{\displaystyle\sum_{i=1}^{51} 2i}

Use the linearity of sum to rewrite this as

\dfrac{\displaystyle4\sum_{i=1}^{51} i}{\displaystyle2\sum_{i=1}^{51} i}

So, as you can see, the numerator is exactly twice the numerator: you can cancel out the sum and you have

\dfrac{4}{2} = 2

8 0
3 years ago
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